I have carefully followed the instruction from fabric (https://fabric.io/kits/ios/crashlytics/manual-install) to install crashlytics in my app. However I cannot select my app after the instruction since my app is not showing. I have tried most of the solution that has been given in this question here (Crashlytics in iOS won't proceed past "Build Your Project" in Fabric app)
But I still failed to get my app in fabric. I am using react native to develop my app and using Xcode Version 10.2.1